Showa 5683, Operation Manual

Page: 23 / 68

３−２
3.1.2 Connections of Power Supply Cable and Output Cable (See Fig. 3-2)
(1) Use the power supply cable for 100 VAC (Model 0311-5112 for 110 VAC or higher), 200 VAC,
or 12 VDC depending on the voltage.
(2) Connect the output cable appropriate to the recorder to be used.
(3) For more information, refer to Connection between Output and Load on page 4-8.
(4) The chassis of this amplifier is connected to the output common lead.
3.2 Operation before Measuring
3.2.1 Standalone Operation
(1) Set the calibration value application switch (14) (+
•
-) to the
•
(OFF) position.
(2) Pressing power switch (19) (POWER) supplies power to the amplifier.
(3) Set the measuring range to OFF (Measuring Range LED (11)) using measuring range
selection knob (8) (RANGE).
(4) Setting the measuring range to OFF using measuring range selection knob (8) illuminates
the green LED in the middle of level meter (2). Activate for about 10 minutes.
(5) For correct strain measurement, you must conduct initial balancing for the bridge circuit.
Tune to your target measuring range using measuring range selection knob (8) and adjust
the output to zero while no load is being applied.
(6) Bridge check, cable length compensation, and automatic balancing
Turn measuring range selection knob (8) clockwise up to your target measuring range, and
then narrow the measuring range (i.e. increasing sensitivity). In this case, the indication of
measuring range LED (11) changes from OFF to other values, in that the value changes
toward 200. Pressing the BAL knob (4) performs the bridge check, cable length
compensation (indication of the rate of damping), and auto-balancing in this order. For more
information, see Indication upon Execution of BAL on page 2-6. (These functions are
available when the dip switches for the bridge check and cable length compensation are set
to ON.)
When there is neither cable disconnection nor a short, and indication of Good is indicated on
Cable for OUTPUT1.2
（
0311-2057
）
DC supply cable or
SYNC cable
AC power supply cable
Fig.3-2 Connection of power supply cable and output cable
You can lock the cable by
turning for 45
°
clockwise.
100 VAC power supply: 47326,
200 VAC power supply: 0311-5112